Fill about 3/4 quarter of multipurpose solution in the Froggy Lens Case, and with just a simple tap on the start-stop button (powered by AA Battery), the kit begins to generate vibration of waves to wash the contact lenses automatically. It works like a real washing machine in miniature size. With its light weight and small size, it is extremely easy and convenient to carry this cleaner kit along with you. Keep you lenses clean and healthy everyday with Automatic Contact Lens Cleansing Machine at affordable price. Automat ic Contact Lens Cleansing Machine- Cutie froggy lenses left-right casing- Machine (Battery not included)- Tweezer- Mirror Color options- Baby Pink- Ocean Blue- Green Froggy- Brownie Orange Is it need for disposable contact lenses?The Automatic Contact Lens Cleansing Machine is able to clean every surface and edges that is hard to reach by human fingers. It remove bacteria, protein build-up, contaminants & prevents eye infection often cause by improper cleansing steps of contact lens.